To signal by means of a flag waved from side to side according to a code adopted for the purpose.
- To move back and forth; wag steadily or rhythmically: watched the pendulum wigwag.
- To signal by waving an upraised arm, flag, or light, especially in accordance with a code.
- To move (something) back and forth steadily or rhythmically.
- To convey (a message or signal) by waving an upraised arm, a flag, or a light.
- The act or practice of wigwagging.
- A message sent by this method.